Here I am going to explain how to detect shake listener in android
Step 1).ShakeListener.java
import android.content.Context;
import android.hardware.SensorListener;
import android.hardware.SensorManager;
public class ShakeListener implements SensorListener
{
private static final int FORCE_THRESHOLD = 400;
private static final int TIME_THRESHOLD = 120;
private static final int SHAKE_TIMEOUT = 500;
private static final int SHAKE_DURATION =1000;
private static final int SHAKE_COUNT = 6;
private SensorManager mSensorMgr;
private float mLastX = -1.0f, mLastY = -1.0f, mLastZ = -1.0f;
private long mLastTime;
private OnShakeListener mShakeListener;
private Context mContext;
private int mShakeCount = 0;
private long mLastShake;
private long mLastForce;
public interface OnShakeListener {
public void onShake();
}
public ShakeListener(Context context) {
mContext = context;
resume();
}
public void setOnShakeListener(OnShakeListener listener) {
mShakeListener = listener;
}
public void resume() {
mSensorMgr =(SensorManager)
mContext.getSystemService(Context.SENSOR_SERVICE);
if (mSensorMgr == null) {
throw new UnsupportedOperationException("Sensors not supported");
}
boolean supported =mSensorMgr.registerListener
(this, SensorManager.SENSOR_ACCELEROMETER,
SensorManager.SENSOR_DELAY_GAME);
if (!supported ) {
mSensorMgr.unregisterListener
(this,SensorManager.SENSOR_ACCELEROMETER);
throw new UnsupportedOperationException("Accelerometer not supported");
}
}
public void pause() {
if (mSensorMgr != null)
{
mSensorMgr .unregisterListener
(this, SensorManager.SENSOR_ACCELEROMETER);
mSensorMgr = null;
}
}
public void onAccuracyChanged(int sensor, int accuracy) {
}
public void onSensorChanged(int sensor, float[] values) {
if (sensor != SensorManager.SENSOR_ACCELEROMETER) return;
long now = System.currentTimeMillis();
if ((now - mLastForce) > SHAKE_TIMEOUT) {
mShakeCount = 0;
}
if ((now - mLastTime) > TIME_THRESHOLD)
{
long diff = now - mLastTime;
float speed= Math.abs(values[SensorManager.DATA_X]
+values[SensorManager.DATA_Y]
+values[SensorManager.DATA_Z]
- mLastX - mLastY - mLastZ) / diff * 10000;
if (speed > FORCE_THRESHOLD)
{
if ((++mShakeCount >= SHAKE_COUNT) && (now - mLastShake>SHAKE_DURATION))
{
mLastShake = now;
mShakeCount = 0;
if (mShakeListener != null)
{
mShakeListener.onShake();
}
}
mLastForce = now;
}
mLastTime = now;
mLastX = values[SensorManager.DATA_X];
mLastY = values[SensorManager.DATA_Y];
mLastZ = values[SensorManager.DATA_Z];
}
}
}
Step 2)Use below steps in your activity
private ShakeListener mShaker;
mShaker= new ShakeListener(this);
mShaker.setOnShakeListener(new ShakeListener.OnShakeListener() {
public void onShake()
{
//To do something
}
Happy Coding;)
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